A demolition company operator has been fined for dumping asbestos-contaminated waste on private property at Two Wells on Adelaide's northern fringe, the Environment Protection Authority (EPA) says.

Troy Batters, from Davoren Park, faced the Environment, Resources and Development Court and pleaded guilty to unlawful disposal of waste last July on land next to Middle Beach Road, the EPA said.

The property owner contacted the EPA to investigate the waste, saying he had not given anyone permission to dump it on his vacant land.

An EPA investigation traced the waste to the company TDL Demolition, which does housing demolition, asbestos removal and site clean-ups.

Six loads of rubbish, amounting to about 54 tonnes, were dumped, the court heard.

The EPA said Batters was fined $9,600 plus court costs.

Authority official Stephen Barry said the general community had a very low tolerance for illegal waste dumping.

"This judgment will hopefully reinforce the severity of this behaviour and that there are significant consequences for anyone who is complacent towards their responsibilities and disregard the law when it comes to dumping waste materials," he said.